Ah hah! Just like on that banner for that fictitious movie on the side of that Double Decker Bus.

Let's face it, because of what Loki did during his exile, all the evil things he engaged in willingly for Thanos to gain more power, Odin just cannot be lenient with Loki even if he wanted to, not even after Loki did something out of the earnest inclination to do something right and selfless for a change instead of being selfish. The tragedy of Loki's character arc and the truth of his very existence would be elevated a notch more if this were to happen. If this Moral Sacrifice plot is what's in store for Loki I cannot wait to see how it will all play out, especially between Tom Hiddleston and Anthony Hopkins. Odin's grief should be excruciating to see, especially considering the thoughts going through his head, like whether or not he should have left Loki to freeze to death as a baby. Oh I am hoping that my assumptions are correct because the drama level would be off the scale.

I'm 101% sure that "Moral Sacrifice" applies to the hero, not the villain. It will have nothing to do with Loki's story arc, and everything to do with Thor's.

Make no mistake: any "redemption" Loki displays in this movie will be purely for show, to weasel out of whatever punishment Odin inflicts upon him for his many, many, many crimes of genocide, slavery, and treason.